Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
Paar W H , Miletich R , Topa D , Criddle A J , De Brodtkorb M K , Amthauer G , Tippelt G , American Mineralogist , 85 (2000) p.1066-1075, Suredaite, PbSnS3, a new mineral species, from the Pirquitas Ag-Sn deposit,, NW-Argentina: Mineralogy and crystal structure
Physical Properties of Suredaite
Cleavage:
{001} Perfect, {101} Perfect, {100} Perfect
Color:
Grayish black.
Density:
5.54 - 5.88, Average = 5.71
Diaphaneity:
Opaque
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Habit:
Tabular - Form dimensions are thin in one direction.
Hardness:
2.5-3 - Finger Nail-Calcite
Luster:
Metallic
Streak:
black
Optical Properties of Suredaite
Optical Data:
NCalc= 1.62 - from Gladstone-Dale relationship (KC = 0.1116) where Ncalc=Dcalc*KC+1 NCalc= 1.64 - from Gladstone-Dale relationship (KC = 0.1116) where Ncalc=Dmeas*KC+1
RL Anisotrophism:
Rotation tints of metallic blue to mauve to brown.
RL Bireflectance:
Not apparent.
RL Color:
White.
RL Pleochroism:
Not apparent.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Suredaite in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
400 nm
35.60
37.90
420 nm
35.50
37.50
440 nm
35.00
36.90
460 nm
34.30
36.30
480 nm
33.60
35.60
500 nm
32.90
34.80
520 nm
32.20
33.90
540 nm
31.50
33.10
560 nm
30.80
32.30
580 nm
30.30
31.70
600 nm
29.70
31.10
620 nm
29.30
30.70
640 nm
29.00
30.20
660 nm
28.70
29.80
680 nm
28.40
29.40
700 nm
28.40
29.30
Standardized Intensity (100%) Reflection Spectra of Suredaite in Oil
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
400 nm
21.30
22.40
420 nm
20.50
21.80
440 nm
19.80
21.20
460 nm
19.10
20.60
480 nm
18.50
19.90
500 nm
17.80
19.00
520 nm
17.20
18.40
540 nm
16.60
17.60
560 nm
16.10
17.00
580 nm
15.50
16.50
600 nm
15.20
16.00
620 nm
14.80
15.60
640 nm
14.50
15.20
660 nm
14.30
14.90
680 nm
14.00
14.60
700 nm
13.80
14.50
Calculated Relative Intensity Colors of Suredaite in Air
Relative Intensity
0%
40%
80%
100%
120%
160%
200%
240%
280%
300%
R1
R2
Calculated Relative Intensity Colors of Suredaite in Oil
Relative Intensity
0%
60%
100%
120%
180%
240%
300%
360%
420%
480%
540%
570%
R1
R2
Calculated Properties of Suredaite
Electron Density:
Bulk Density (Electron Density)=4.78 gm/cc note: Specific Gravity of Suredaite =5.56 gm/cc.
Fermion Index:
Fermion Index = 0.14 Boson Index = 0.86
Photoelectric:
PESuredaite = 862.93 barns/electron U=PESuredaite x rElectron Density=4,121.30 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Suredaite is Not Radioactive
Suredaite Classification
Dana Class:
02.04.21.01(02)Sulfides - Including Selenides and Tellurides